register keyword is deprecated in c++11
make _M_mat protected so that it can be used in sublasses
Debug() -> LOG(INFO)
FEELPP_ASSERT -> CHECK
change order (fix the bug it seems)
remove deprecated register keyword

get read of one invalid read thx to valgrind
the other one is in the boost::filesystem lib (1.49 on Ubuntu)
it may have been fixed in a recent boost::filesystem version according to
Boost Trac
change order
Merge branch 'develop' of https://github.com/feelpp/feelpp into develop
move up the check of connectivity